10120505631555 has 32 divisors (see below), whose sum is σ = 17839782413568. Its totient is φ = 4858328528000.

The previous prime is 10120505631539. The next prime is 10120505631559. The reversal of 10120505631555 is 55513650502101.

It is not a de Polignac number, because 10120505631555 - 2⁴ = 10120505631539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10120505631559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303628869 + ... + 303662198.

It is an arithmetic number, because the mean of its divisors is an integer number (557493200424).

Almost surely, 2^{10120505631555} is an apocalyptic number.

10120505631555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10120505631555 is a deficient number, since it is larger than the sum of its proper divisors (7719276782013).

10120505631555 is a wasteful number, since it uses less digits than its factorization.

10120505631555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607291187.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 10120505631555 in words is "ten trillion, one hundred twenty billion, five hundred five million, six hundred thirty-one thousand, five hundred fifty-five".